This is all I've got from the client.

Step One. Typical data flow

Step Two. Wireframes: starting page

Wireframes. "Look for" tab: search parameters

Wireframes. "Display" tab: display result settings

Wireframes. Search results

Wireframes. Search results as grid

... and finely HIFI

HIFI: menu

HIFI: search params

HIFI: search results

HIFI: provider details

HIFI: provider details

HIFI: you can add your "told not" params